David Cogen

David opened a cell phone store on his college campus and started TheUnlockr.com as a personal tech blog back in 2009 along side. He gets an unnatural excitement out of showing others new things about their tech that they might not have known. Reach out to him on the following social networks and say hi.

T-Mobile MyTouch Slide Users, Unreleased Froyo OTA in Custom ROM Form

ChiefzReloaded over at XDA has posted about what he claims is a ROM based on an unreleased but official ROM for the T-Mobile MyTouch Slide (He gives credit and special thanks to  Nbetcher and Krylon360, also on XDA). The ROM is an Espresso Sense ROM based on the new, yet […]

How To: Unlock Your GSM Samsung Galaxy Tab’s Bootloader

I. Before You Begin 1. This is ONLY for GSM versions of the Galaxy Tab (uses a SIM card). 2. This is ONLY for devices that have been updated to firmware version JM* or KA* and in doing so got their bootloaders locked (they are unable to flash firmware). IF

NVIDIA’s Tegra 3 Quad-Core Chip Coming Soon?

With the first dual-core mobile devices coming out this year, when will NVIDIA up the ante again? Well, according to Mashable, how about now? NVIDIA hasn’t officially launched the Tegra 3 yet, but a few sources are saying it’s a definite. Softpedia says it should be unveiled at Mobile World

Motorola XOOM Release Date

A tipster has sent in an inventory sheet from Best Buy to Engadget and guess what was listed on there? The Motorola XOOM, the most talked about Android tablet at the Consumer Electronics Show earlier this month. The Motorola XOOM tablet will feature: 1 Ghz dual-core Tegra 2 processor 10.1″

New Windows Phone 7 Jailbreak Hack Coming Soon

So by now most people know about the ChevronWP7 jailbreak tool that came out a while ago and then was taken down by it’s developer as a sort of peace offering to begin talks with Microsoft about “facilitating homebrew development”. Well, it would seem that others are finally stepping up

How To: Manually Update Your Nexus S to Android 2.3.2

I. Before You Begin 1. This is for NOT ROOTED STOCK NEXUS ONES. If you are rooted then you can just flash a custom ROM based on this update as always. 2. This fixes the SMS bug as well as “other security updates”. 3. This update requires you to be

How To: Manually Update Your Nexus One to Android 2.2.2

I. Before You Begin 1. This is for NOT ROOTED STOCK NEXUS ONES. If you are rooted then you can just flash a custom ROM based on this update as always. 2. This fixes the SMS bug as well as “other security updates”. 3. This update requires you to be

How To: Update Your Samsung Vibrant to Android 2.2

So the wait is over for you non-rooted Vibrant owners (if you were rooted you could have flashed a custom ROM with 2.2 a while ago, of course). Here is how to install the official Android 2.2 update for your Vibrant. I. Before You Begin 1. This is only for

Android Powered T-Mobile Sidekick Cometh?

Remember the Sidekick? Seems like so long ago that this phone was the top phone on T-Mobile’s network (at least in the hands of teenagers across the country). And why was it so popular? Well, for one it had all the smartphone capabilities like email, web browsing, multitasking, etc. with

How To: Unroot the Nexus S

I. Before You Begin 1. This will return the phone back to the stock ROM and put you at build GRH78. 2. Use this method to start over, or to send your phone in for warranty reasons. 3. You MUST have a custom recovery image to use this unrooting method.

Could Samsung Purposely Be Withholding the 2.2 Update for Vibrant Users?

So who knows if this is true, but according to AndroidSpin and a “reliable source”, that 2.2 update from Samsung you’ve been waiting for? Well, it’s ready, but you can’t have it just yet. AndroidSpin quotes a tipster as saying the following: Some disturbing things have happened the last week

TheUnlockr Show: Episode 1/Pilot

In this episode,we do a quick review of Microsoft’s Windows Phone 7 OS, we do some tests on the new OS comparing it to the Nexus One (Android OS) and the iPhone 4 (iOS), and we even compare Microsoft’s marketing claims for the new OS against real time time trials